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电感耦合等离子体原子发射光谱(ICP-AES)法测定NiCrAlYSi合金中铝、硅、铁、钴、钛

Chinese Jorunal of Inorganic Analytical Chemistry(2018)

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Abstract
用盐酸、硝酸及氢氟酸溶解样品,采用基体匹配法配制标准溶液系列以消除基体效应的影响,选择Al394.401 nm、Si251.611 nm、Fe259.940nm、Co238.892nm、Ti 337.280 nm为分析线,使用电感耦合等离子体原子发射光谱(ICP-AES)法测定NiCrAlYSi合金中的铝、硅、铁、钴、钛.Al的质量分数在0.10%~15%、Si的质量分数在0.01%~6.0%、Fe、Co、Ti的质量分数在0.005%~0.50%时,各元素质量分数与对应的发射强度呈线性,线性相关系数不小于0.999 5;方法中各元素检出限为0.0005%~0.0020%;结果的相对标准偏差为0.46%~3.7%;加标回收率为90.0%~104%.方法简单、快速,结果令人满意.
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